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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
How do I get the BC for a bullet whos maker dosent even know????
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<blockquote data-quote="Fiftydriver" data-source="post: 278237" data-attributes="member: 10"><p>Ridge Runner,</p><p> </p><p>My friend, your going to get in trouble posting BCs like that!!!<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite8" alt=":D" title="Big Grin :D" loading="lazy" data-shortname=":D" /> </p><p> </p><p>I can already hear the keys rattling around the world getting ready to hammer you for saying a 160 Accubond has a BC of over .6!!!!!</p><p> </p><p>All kidding aside, the given BC value is simply a starting point with any bullet. Use that to get started and then you will have to tweak alot of things to get the computer generated models to match up to actual bullet trajectory.</p><p> </p><p>Also, as mentioned, BC changes as velocity changes so its not the same at close, mid or long range. In my testing, its common to see BC be lower from 0 to 200, increase a bit from 200 yards out to until the bullet reaches around 1200 fps and then drop off dramatically as the bullet drops under 1100 fps.</p><p> </p><p>Its all an average. Find a number that puts you on target over the trajectory of your combo and your there, the actual number you use is meaningless as far as describing the actual BC of a given bullet, its just a value you have to use to predict where your combos bullet will be at any range on its trajectory.</p></blockquote><p></p>
[QUOTE="Fiftydriver, post: 278237, member: 10"] Ridge Runner, My friend, your going to get in trouble posting BCs like that!!!:D I can already hear the keys rattling around the world getting ready to hammer you for saying a 160 Accubond has a BC of over .6!!!!! All kidding aside, the given BC value is simply a starting point with any bullet. Use that to get started and then you will have to tweak alot of things to get the computer generated models to match up to actual bullet trajectory. Also, as mentioned, BC changes as velocity changes so its not the same at close, mid or long range. In my testing, its common to see BC be lower from 0 to 200, increase a bit from 200 yards out to until the bullet reaches around 1200 fps and then drop off dramatically as the bullet drops under 1100 fps. Its all an average. Find a number that puts you on target over the trajectory of your combo and your there, the actual number you use is meaningless as far as describing the actual BC of a given bullet, its just a value you have to use to predict where your combos bullet will be at any range on its trajectory. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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How do I get the BC for a bullet whos maker dosent even know????
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